Safety Lock to Protect Child: This safety lock with password lock can prevent babies from pinching their fingers when they open the refrigerator; prevent babies from eating food forbidden by their parents; even babies accidentally lock themselves in the refrigerator.NO Tools or Drilling: This refrigerator lock is very easy to install and install, just peel off the sticker and stick it on the refrigerator. Please clean and dry the surface of the refrigerator before use. 3M stickers are strong and will not damage the surface of the refrigerator,